Telecommunications Networks and Carriers.
There are quite a few places where SMS and MMS delivery might fail, especially as messages move through the interfaces between pieces of infrastructure.Īlthough not an exhaustive list, common failure vectors include: Common Causes of Text Message Delivery Failure As SMS deliverability strictly focuses on intention versus result, Twilio can help you increase deliverability through our value-added services and your business logic and code. This key difference means that your logic can implement fallbacks and use messaging auditing features to increase deliverability, even if that requires additional API calls and redundant logic. Message Deliverability strictly measures how many messages are delivered versus the number intended in a defined time frame. It's important to note that deliverability isn't measured by total API calls or messages sent. The equation then becomes: TOTAL MESSAGES DELIVERED / MESSAGES INTENDED There is no standard time frame for measuring SMS or text message deliverability, but most often rates are quoted annually, quarterly, or daily.
Of course - even with best practices in place, you'll still have some failures.
#Text messaging program with read receipt code
Twilio's Messaging Services' Fallback to Long Code feature can automatically fall back to long codes on SMS delivery failure Through choosing reliable API partners (Twilio's current SLAs with Programmable SMS are here), implementing read receipts or falling back to a different process or number, you can keep your SMS Deliverability rate close to 100%. Whether sending a text message from a phone or through an SMS API, the nature of the short messaging service means some percentage of SMS messages will never be delivered.Īs opposed to thumbing out a text on a phone, SMSes sent programmatically through an SMS Gateway have an advantage application logic can verify delivery, increasing total SMS Deliverability by working around issues with sent messages. While sometimes referring to the status of a single message, SMS delivery usually is a rate of delivered versus intended messages and summarized as an 'SMS Delivery Rate.' SMS Delivery and Reliability SMS Delivery is a measure of the percentage of outgoing SMS and MMS messages which are received at their intended destination.
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